General
Startup and Re-
connection
These parameters can be used to set the grid monitoring times before the invert-
er is switched on.
For the set time, both the mains voltage and the grid frequency must be within
the permissible range before connection is allowed.
-
The permissible range for the mains voltage is defined in the menu area "Grid
and system protection" → "Voltage" → "Startup and reconnection" (see
chapter Voltage).
-
The permissible range for the grid frequency is defined in the menu area
"Grid and system protection " → " Frequency " → " Startup and reconnection"
(see chapter Frequency).
Parameter Range of values Description
"Grid Monitoring
Time Startup"
1 - 900 [s] Grid monitoring time before the invert-
er is switched on during a normal start-
up process in seconds (e.g. at sunrise).
Parameter Range of values Description
"Grid Monitoring
Time Reconnec-
tion"
1 - 900 [s] Grid monitoring time before the invert-
er is switched back on after a grid fault
(see table "Grid faults") in seconds
(e.g. if a fault occurs in the AC grid dur-
ing the day which causes the inverter to
shut down).
The following errors are defined by the inverter as grid errors for this function-
ality:
Name Description "StateCode"
name
"StateCode"
number
"Overvoltage" Mains voltage exceeds an
overvoltage limit ("Inner,
Middle, or Outer Limit
Overvoltage").
"AC voltage
too high"
1114
"Undervoltage" Mains voltage falls below
an undervoltage limit ("In-
ner, Middle or Outer Limit
Undervoltage").
"AC voltage
too low"
1119
"Overfrequency" Grid frequency exceeds an
overfrequency limit ("In-
ner, Outer or Alternative
Limit Overfrequency").
"AC fre-
quency too
high"
1035
"Underfrequency" Grid frequency falls below
an underfrequency limit
("Inner, Outer or Alternat-
ive Limit Underfre-
quency").
"AC fre-
quency too
low"
1037
"Fast Overvoltage
Disconnect"
Triggering of the fast surge
protection (> 135%).
"Grid voltage
too high (fast
overvoltage
cut-out)"
1115, 1116
10
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